Scott mixer



COMPOSITIONS, COATING R PLASTIC.

sco'r'r MIXER, on

MANUFACTU-RE OF AlRTlF tress Reference I; e a r...

I I I l A UNITED STATES PATENT OFFICE.

ClNGINN ATI, OHIO.

I-cIA]. STON E OR MARBLE.

SPECIFICATION forming part f Letters Patent m. 326,317, datedseptember1S, 1885.

Application filed March To all whom it may concern:

Be it knownthat I, SCOTT MIXER, of Oincinnati, in Hamilton county andState of Ohio, have invented certain new and useful 5 Improvements inthe Manufacture of Artifigypsnm or h 'draulic chalk or calcined lascialStone 'or Marble, of which the following 'teF f ,preerablyfi, "gypsum,an mix 0 e :5 potash-alum, four pounds; salt ol so'dlum, pre era yicarbonateofsodium fourpounds;

ree an onca pounds, bi-

solubleglass cF'rd mate oi potash, two pounds; ferrous sula e wo poun s.I then mix with t 1s solution a mixture consisting of or about fourpounds each of l cerine and lithar e. The r resulting mixture l term the"solutlonfl The peculiar properties of the glycerine and litharge, inconnection wit-h the foregoing solution, cause the stone to becomeextremely hard. T6 make artificial stone I take one 1) partof h drauliccement and one (1) part of fine sharp sand and mix them thoroughlytogether;

I The mixture is then dampened with the solution, care being taken thatevery particle of the sand and cement is moistened. This i will preventit sticking to the mold. The

bottom of the mold is carefully covered with 5this material, and then ashell is placed on the sides, leaving a hollow space within. This hollowspace is preferably filled with a v coarser material consisting of onepart of hydraulic cement and twelve parts of gravel, all The top of thestone formed is smoothed oil by mechanical means. The mold isimmediately turned over onto a smooth surface and lifted ofi' from thestone, which is left on the smooth 5 surface.- After standing forsomesix to twelve.

hours the stone is moistened with solution. Subsequentlycold water issprinkled over it three times a day for three or'four days. The

30;1se5. (No specimens.)

resulting compound is a hard durable mass suitablefor building purposes,foundations,

sidewalks, cellars,malt-floors, 82c.

In making artificial marble I take powdered consistency of paste withthe solution. It is then pressed intosuitable molds, where it is allowedto remain until it is hard and dry.

To cheapen the artificial marblg lem loy a p lgp s imi lgg gg that used'i'fi dhcapenin ueeiinsnne; a 6f the plastic mar e a ove fill theinterior with a cheaper substanceviz., a mixture ofhydraulie. cement andsand in equal parts. The resulting block has the appearance of a solidblock of marble, and is equally serviceable. This artificial marble; maybe molded into desired shape, or while in the plastic state may beapplied to walls, floors, statues, &c. When dry, this artificial marbleis susceptible of taking a high polish.

When imitations of' colored marbles are desired, the difi'erent pigmentsare mingled with the solution and gypsum, and placed on a smoothsurface, such as glass, andthere manipulated until the desired marblingis obtained. This operation is' preferably performed in the mold itself,and after the desired result has been attained with the marble the imold is filled with the cheap filling as before.

The artificial stone and the artificial marble produced by theabove-described process are hard an diflrable, and resist the actionnofnheatan col alldfimflfiewflhey are in every way suite for buildingpurposes, and their beauty makes them highly desirable articles.

What I claim as new and of my invention,- 1 and desire to secure byLetters Patent, is .'-=1.-". In the manufacture of artificial stone ormarble, a solution in water of soda-alum, a sodium salt, soluble glass,bichromate of pot- '90 ash, and ferrous sulphate, substantially as and 5for the purposes specified. 2. In the manufacture of artificial stoneor. a 1 marble, a solution in water of soda-alum, a

indiumialh wjluble sb hromete of'pot 9s. I ash, and ferrous-s atecombined with a mixture of litharge and glycerine to form the liquidcompound, as and for the purposes specified.

3. In the manufacture of artificial stone or marble, a solution in waterof soda alum, a-

sodium salt, soluble glass, bichromate of potash, and ferrous-sulphatecombined with a mixture of litharge and glycerine to form the

